Home > Storage > PowerScale (Isilon) > Product Documentation > Data Efficiency > Next-Generation Storage Efficiency with Dell PowerScale SmartDedupe > Small File Storage Efficiency (SFSE) and SmartDedupe
SFSE is mutually exclusive to all the other shadow store consumers (file clones, inline deduplication, SmartDedupe). Files can either be packed with SFSE or cloned/deduplicated, but not both.
Inlined files (small files with their data stored in the inode) are not deduplicated, and non-inlined datafiles that are once deduplicated will not inline afterwards.